US20020146137A1 - Method for individualizing a hearing aid - Google Patents
Method for individualizing a hearing aid Download PDFInfo
- Publication number
- US20020146137A1 US20020146137A1 US09/829,700 US82970001A US2002146137A1 US 20020146137 A1 US20020146137 A1 US 20020146137A1 US 82970001 A US82970001 A US 82970001A US 2002146137 A1 US2002146137 A1 US 2002146137A1
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- Prior art keywords
- loudness
- factor
- individual
- hearing
- function
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/35—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using translation techniques
- H04R25/356—Amplitude, e.g. amplitude shift or compression
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/70—Adaptation of deaf aid to hearing loss, e.g. initial electronic fitting
Abstract
Description
- This invention relates to a method for individualizing a hearing aid.
- Successfully fitting a hearing-impaired individual with a hearing aid that is to correct for the hearing impairment is a critical factor which, among other things, determines the person's acceptance of the hearing aid. In this context it is not only the nature and degree of the hearing impairment that is of significance but there are various other factors as well, for instance the person's particular perception of loudness levels.
- The disclosure document of the European patent application number EP-A2-0 661 905 describes one such method for fitting a person with a hearing aid. That earlier method addresses the correction of the damaged psycho-acoustic perception of an individual by a parameter adjustment in the hearing aid. The targeted correction uses as a reference value the statistically determined average auditory perception of persons with normal hearing.
- The above-mentioned patent disclosure further indicates that a loudness scaling procedure is employed for establishing a dynamic-compression default setting in the hearing aid. This permits on an individualized basis the determination of the acquisition level in the case of inner-ear damage, and thus equally individualized compensation. Additional reference is made in this connection to the publications by Kiessling, Kollmeier and Diller titled “Outfitting and Rehabilitation with Hearing Aids” (1997, Thieme, Stuttgart, New York) and by Thomas Brand titled “Analysis and Optimization of Psychophysical Procedures in Audiology” (Oldenburg: Library and Information System of the University, 2000-148 pp., Oldenburg, Diss., Univ., 1999, ISBN 3-8142-0721-1).
- The loudness standard serving as a reference was established based on a group of persons with normal hearing, employing, where possible, the same procedure for determining that standard auditory function that is used in the specific individual measurements.
- Various investigations have made it evident that auditory perception can differ significantly even within the loudness standard. A summary of the data established is contained in the publication by C. Elberling titled “Loudness Scaling Revisited” (J Am Acad Audiol 10, pp 248 to 260, 1999).
- It is therefore the objective of this invention to introduce a method for providing settings in the hearing aid which permit an improved adaptation of hearing aids to the loudness perception of the individual.
- This is accomplished by means of the procedure specified in
claim 1, with subsequent claims specifying desirable implementation versions of the invention. - The advantages offered by this invention are as follows: Both the auditory perception of the individual and the statistical average auditory perception of hearing-impaired persons as a function of their loss of hearing as well as the standard auditory perception of persons with normal hearing are taken into account in defining the settings of a hearing aid, appropriately weighted on the basis of data reliability, the result being optimized target parameters for adjusting the settings of the individual's hearing aid, and thus improved hearing of the individual. In other words, this invention has made it possible to obtain a target loudness level which is optimized for the loudness perception of the individual.
- The following description explains this invention in more detail with the aid of drawings in which
- FIG. 1 is a schematic illustration of a quantification unit serving to quantify an individually perceived loudness level;
- FIG. 2 indicates the loudness level perceived by a person with normal hearing and, respectively, by a person with impaired hearing, as a function of volume and at a specific frequency;
- FIG. 3 shows the loudness correction as a function of the loss of hearing (HVLS/LOHL function) of a hearing-impaired person; and
- FIG. 4 shows the level for loudness=0 as a function of hearing loss (HVLO/HLLO function) for a hearing-impaired person.
- As is already evident from the introductory statements, the invention provides the possibility of an individualized and consequently better adjustment of hearing aids by virtue of the fact that the hearing-aid setting takes into account deviations attributable to inaccurate measurements as well as scattered values resulting from different individual loudness perceptions, with appropriately weighted individually established parameters as well as the standard loudness perception contributing to the definition of optimal adaptation. The term “optimal adaptation” in this case refers in particular to the setting of a balanced compression pattern and of the amplification, i.e. the frequency-dependent input/output characteristics of the hearing aid.
- In terms of the compression, this is accomplished in particular by plotting the specific gradients of the individual scaling results as a function of the loss of hearing and approximating them by a specific HVLS/LOHL function, i.e. by the gradient of the loudness factor as a function of the hearing loss HV/HL. The individual HVLS/LOHL function when compared to the average hearing-impaired HVLS/LOHL function permits the determination of a factor which describes the loudness sensitivity of the individual in comparison with the standard.
- In terms of the amplification, this is accomplished by plotting the specific levels L0 of the individual scaling results as a function of the hearing loss and approximating them by a specific HVL0/HLL0 factor, where the level for loudness=0 as a function of the loss of hearing HV/HL. The individual HVL0/HLL0 factor, compared to the average HVL0/HLL0 factor of the hearing-impaired, permits the determination of an offset which describes the mean value of the difference in the abscissa of the loudness function of the individual in comparison with the standard.
- The following is a step-by-step explanation of the procedure for the adaptation of a hearing aid.
- First, an audiogram is prepared. For a potential wearer of a hearing aid this is done by measuring the hearing thresholds for pure sounds at different frequencies. The increments of these audible limits are expressed and plotted as hearing loss in dB for each frequency and at certain frequency intervals. The audiogram thus allows for the determination of the auditory range in which there is a hearing loss. The audiogram also establishes data sampling points, meaning individual frequencies, at which loudness scaling is subsequently performed in the manner described next.
- The loudness “L” is a psycho-acoustic variable which indicates how “loud” an acoustic signal is perceived by an individual.
- In the case of natural acoustic signals which are always broad-band signals, the loudness does not necessarily match the physically transmitted energy of the signal. A psycho-acoustic analysis of the impinging acoustic signal takes place in the ear within individual frequency bands, the so-called critical bands. The loudness is determined by a band-specific processing of the signal and an inter-band superposition of the band-specific processing results, known as “loudness summation”. These basic principles were described in detail by E. Zwicker in “Psychoacoustics”, Springer-Verlag Berlin, academy edition, 1982.
- It has been found, however, that loudness must be viewed as one of the most essential psycho-acoustic variables determining acoustic perception.
- One possibility to use the loudness individually perceived in response to selected acoustic signals as a variable for further processing is offered by the method schematically illustrated in FIG. 1 and described for instance by O. Heller in “Auditory Range Audiometry Employing the Categorization Method”, Psychological Articles 26, 1985, or by V. Hohmann in “Dynamics Compression for Hearing Aids, Psychoacoustical Fundamentals and Algorithms”, thesis at the Univ. of Gottingen, VDI-Verlag, Series 17, No. 93, or by Thomas Brand in “Analysis and Optimization of Psychophysical Procedures in Audiology”, (Oldenburg: Library and Information System of the University, 2000-148 pp., Oldenburg, Diss., Univ., 1999, ISBN 3-8142-0721-1). According to that method, a person I is exposed to an acoustic signal A which can be varied in a
generator 1 in terms of its spectral composition and its transmitted sound pressure level. The person I analyzes i.e. “categorizes” the acoustic signal A just heard by means of aninput unit 3 within for instance eleven loudness steps or categories as illustrated in FIG. 1. These steps are assigned numerical weights for instance from 0 to 10. - By means of this approach it is possible to measure or quantify the specific loudness perceived. According to this invention, the process, hereinafter referred to as loudness scaling, is performed at a minimum of one and preferably at three different frequencies or data sampling points.
- In FIG. 2 the loudness L, registered by category scaling per FIG. 1, is expressed as a function of the mean sound pressure level in dB-SPL for a sinusoidal signal of frequency fk. As is evident from the pattern in FIG. 2, the loudness KkN of the standard in the graph chosen increases in nonlinear fashion with the signal level; in a first approximation the slope for persons with normal hearing is expressed for all critical bands by the regression line indicated as N in FIG. 2 with a gradient αN in [categories per dB-SPL].
- It is quite evident from this illustration that the model parameter αN corresponds to a nonlinear amplification which for persons with normal hearing is approximately the same in each critical frequency band, whereas for hearing-impaired persons the determination must be made using αkT for each frequency or frequency band.
- The straight line with the gradient αkT serves to approximate the nonlinear loudness function at frequency fk by means of a regression line.
- In FIG. 2, LkT indicates the typical pattern of loudness LT of a hearing-impaired person at a frequency of fk.
- A comparison of the curves LkN and LkT shows that the curve of a hearing-impaired person displays a greater offset (Lo) relative to zero and has a steeper slope than the standard curve. The greater offset corresponds to a higher audible limit or hearing threshold; the phenomenon of the invariably steeper loudness curve is referred to as loudness “recruitment” or acquisition and reflects a higher a-parameter.
- As pointed out further above, loudness scaling is performed at a minimum of one and preferably at three reference or data sampling points, i.e. at one or several different frequencies. Based on these reference values a so-called HVLS/LOHL factor is established by plotting the gradients of the loudness factor α1, α2, α3, . . . as a function of hearing loss HV/HL in dB.
- FIG. 3 shows an HVLS/LOHL function for a hearing-impaired person, with the individual HVLS/LOHL function, represented by the dashed line, established via three data sampling points for building a suitable model as explained below.
- The following model has been found to be particularly useful in determining the gradient α as a function of hearing loss HV/HL (for hearing loss between 20 dB and 100 dB):
- log 10(α)=a a ×HV/HL+b a ×log(HV/HL)+VP consta for 20 dB<HV/HL<100 dB,
- where
- α=gradient of the loudness function,
- HV/HL=hearing loss in dB,
- aa, ba=constant function parameter, and
- VPconsta=the individual function parameter which adapts the HVLS/LOHL factor to the data sampling points α1, α2, α3, . . .
- It should be mentioned at this juncture that, having been extrapolated from several data sampling points, the individual HVLS/LOHL factor illustrated in FIG. 3 shows less dispersion-related deviation than do the sampling points by themselves, thus providing a better reflection of changes in individual perception. Although it would be possible to obtain the targeted reference settings for the hearing aid already on the basis of this individual HVSL/LOHL factor, to determine the gradient α at 0 dB hearing loss by extrapolation (dotted curve in FIG. 3) and to set the hearing aid accordingly, it has been found that the setting of the hearing aid can be substantially improved if data on the healthy ear are also included in the equation. According to the invention the normal loudness perception should be used as a reference for determining the individually needed compression at 0 dB hearing loss. In the process, according to the invention, the fact is taken into account that even the loudness perception of persons with normal hearing tends to vary to a more than negligible extent.
- As a preferred solution for including the normal-loudness factor, a mean value is established between the individual gradient α at 0 dB hearing loss, determined by measurements and by extrapolation, and the normal-loudness gradient, weighting the values based on their expected dispersion both for the individual gradient α at 0 dB hearing loss and for the normal-loudness gradient. Weighting the individual scaling data as a function of their respective quality and of the number of measuring points for the various scaling functions and the number of scaling operations themselves has proved to be useful. For individual scaling data of average quality at three frequencies, a weighting of the individual gradient α at 0 dB hearing loss by a factor of ⅔ and a weighting of the normal-hearing gradient αN by a factor of ⅓ can lead to an exceedingly good adaptation of the hearing aid.
- Similar to the gradient α for the loudness function, the abscissa section L0 of the loudness factor in conjunction with the hearing loss information established in the audiogram permits the determination of an optimum band-specific amplification.
- As pointed out further above, loudness scaling is performed at a minimum of one and preferably at three reference or data sampling points, i.e. at one or several different frequencies. Based on these data points the HVL0/HLL0 factor is established by plotting the abscissa sections for the loudness factor L01, L02, L03, . . . as a function of hearing loss HV/HL in dB.
- FIG. 4 shows the HVL0/HLL0 factor for a hearing-impaired person with the individual HVL0/HLL0 function, represented by the dashed line, established via three data sampling points for building a suitable model as explained below.
- The following model has been found to be particularly useful in determining L0 as a function of hearing loss HV/HL (for hearing loss between 20 dB and 100 dB):
- L 0=αL ×HV/HL+b L ×log(HV/HL)+VP constL for 20 dB<HV/HL<100 dB,
- where
- L0=level of loudness=0,
- HV/HL=hearing loss in dB,
- aL, bL=constant function parameter, and
- VPconstL=individual function parameter which adapts the HVL0/HLL0 function to the data sampling points L01, L02, L03, . . .
- It should be mentioned at this juncture that, having been extrapolated from several data sampling points, the HVL0/HLL0 factor illustrated in FIG. 4 shows less dispersion-related deviation than do the sampling points by themselves, thus providing a better reflection of changes in individual perception. Although it would be possible to obtain the targeted reference settings for the hearing aid already on the basis of this individual HVL0/HLL0 factor, to determine the level L0 at 0 dB hearing loss by extrapolation (dotted curve in FIG. 3) and to set the hearing aid accordingly, it has been found that the setting of the hearing aid can be substantially improved if, similar to the gradient a, data on the healthy ear are also included in the equation. According to the invention the standard i.e. normal loudness perception should be used as a reference for determining the individually needed compression at 0 dB hearing loss. In the process, according to the invention, the fact is taken into account that even the loudness perception of persons with normal hearing tends to vary to a more than negligible extent.
- As a preferred solution for including the normal-loudness factor, a weighted mean value is established between the individual level L0 at 0 dB hearing loss, determined by measurements and by extrapolation, and the normal level L0, weighting the values based on their expected dispersion both for the individual level L0 at 0 dB hearing loss and for the normal level L0. For the level L0 as well, similar to the gradient of the loudness factor, weighting the individual scaling data as a function of their respective quality and of the number of measuring points for the various scaling functions and the number of scaling operations themselves has proved to be useful.
- For individual scaling data of average quality at three frequencies, a weighting of the individual level L0 at 0 dB hearing loss by a factor of ⅓ and a weighting of the normal-level L0 by a factor of ⅔ can lead to an exceedingly good adaptation of the hearing aid.
Claims (9)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK01916843T DK1290914T3 (en) | 2001-04-10 | 2001-04-10 | Method of fitting a hearing aid to an individual |
DE50102419T DE50102419D1 (en) | 2001-04-10 | 2001-04-10 | METHOD FOR ADAPTING A HEARING AID TO AN INDIVIDUAL |
CA002409838A CA2409838A1 (en) | 2001-04-10 | 2001-04-10 | Method for adjustment of a hearing aid to suit an individual |
PCT/CH2001/000232 WO2001049068A2 (en) | 2001-04-10 | 2001-04-10 | Method for adjustment of a hearing aid to suit an individual |
AU2001244029A AU2001244029A1 (en) | 2001-04-10 | 2001-04-10 | Method for adjustment of a hearing aid to suit an individual |
EP01916843A EP1290914B1 (en) | 2001-04-10 | 2001-04-10 | Method for adjustment of a hearing aid to suit an individual |
US09/829,700 US7194100B2 (en) | 2001-04-10 | 2001-04-10 | Method for individualizing a hearing aid |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CH2001/000232 WO2001049068A2 (en) | 2001-04-10 | 2001-04-10 | Method for adjustment of a hearing aid to suit an individual |
US09/829,700 US7194100B2 (en) | 2001-04-10 | 2001-04-10 | Method for individualizing a hearing aid |
Publications (2)
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US20020146137A1 true US20020146137A1 (en) | 2002-10-10 |
US7194100B2 US7194100B2 (en) | 2007-03-20 |
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US09/829,700 Expired - Fee Related US7194100B2 (en) | 2001-04-10 | 2001-04-10 | Method for individualizing a hearing aid |
Country Status (7)
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US (1) | US7194100B2 (en) |
EP (1) | EP1290914B1 (en) |
AU (1) | AU2001244029A1 (en) |
CA (1) | CA2409838A1 (en) |
DE (1) | DE50102419D1 (en) |
DK (1) | DK1290914T3 (en) |
WO (1) | WO2001049068A2 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
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US20040158431A1 (en) * | 2002-10-18 | 2004-08-12 | Dittberner Andrew B. | Medical hearing aid analysis system |
US20050013445A1 (en) * | 2003-07-18 | 2005-01-20 | Martin G. Patrick | High fidelity hearing restoration |
US20070092089A1 (en) * | 2003-05-28 | 2007-04-26 | Dolby Laboratories Licensing Corporation | Method, apparatus and computer program for calculating and adjusting the perceived loudness of an audio signal |
US20070098193A1 (en) * | 2005-10-31 | 2007-05-03 | Phonak Ag | Method for producing an order and ordering apparatus |
US20070291959A1 (en) * | 2004-10-26 | 2007-12-20 | Dolby Laboratories Licensing Corporation | Calculating and Adjusting the Perceived Loudness and/or the Perceived Spectral Balance of an Audio Signal |
US20080318785A1 (en) * | 2004-04-18 | 2008-12-25 | Sebastian Koltzenburg | Preparation Comprising at Least One Conazole Fungicide |
WO2009016012A1 (en) * | 2007-07-27 | 2009-02-05 | Siemens Medical Instruments Pte. Ltd. | Hearing device controlled by a perceptive model and corresponding method |
US20090161883A1 (en) * | 2007-12-21 | 2009-06-25 | Srs Labs, Inc. | System for adjusting perceived loudness of audio signals |
US20090304190A1 (en) * | 2006-04-04 | 2009-12-10 | Dolby Laboratories Licensing Corporation | Audio Signal Loudness Measurement and Modification in the MDCT Domain |
US20100198378A1 (en) * | 2007-07-13 | 2010-08-05 | Dolby Laboratories Licensing Corporation | Audio Processing Using Auditory Scene Analysis and Spectral Skewness |
US20100202632A1 (en) * | 2006-04-04 | 2010-08-12 | Dolby Laboratories Licensing Corporation | Loudness modification of multichannel audio signals |
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US8144881B2 (en) | 2006-04-27 | 2012-03-27 | Dolby Laboratories Licensing Corporation | Audio gain control using specific-loudness-based auditory event detection |
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US8538042B2 (en) | 2009-08-11 | 2013-09-17 | Dts Llc | System for increasing perceived loudness of speakers |
US8849433B2 (en) | 2006-10-20 | 2014-09-30 | Dolby Laboratories Licensing Corporation | Audio dynamics processing using a reset |
US9312829B2 (en) | 2012-04-12 | 2016-04-12 | Dts Llc | System for adjusting loudness of audio signals in real time |
US9479879B2 (en) | 2011-03-23 | 2016-10-25 | Cochlear Limited | Fitting of hearing devices |
US20180097495A1 (en) * | 2010-07-27 | 2018-04-05 | Bitwave Pte Ltd | Personalized adjustment of an audio device |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7922671B2 (en) * | 2002-01-30 | 2011-04-12 | Natus Medical Incorporated | Method and apparatus for automatic non-cooperative frequency specific assessment of hearing impairment and fitting of hearing aids |
AU2004201374B2 (en) * | 2004-04-01 | 2010-12-23 | Phonak Ag | Audio amplification apparatus |
US7756276B2 (en) * | 2003-08-20 | 2010-07-13 | Phonak Ag | Audio amplification apparatus |
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DE102008019374A1 (en) * | 2008-04-17 | 2009-10-22 | Siemens Medical Instruments Pte. Ltd. | Method for determining a time constant of the hearing and method for adjusting a hearing device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE34961E (en) * | 1988-05-10 | 1995-06-06 | The Minnesota Mining And Manufacturing Company | Method and apparatus for determining acoustic parameters of an auditory prosthesis using software model |
US5729658A (en) * | 1994-06-17 | 1998-03-17 | Massachusetts Eye And Ear Infirmary | Evaluating intelligibility of speech reproduction and transmission across multiple listening conditions |
US6094489A (en) * | 1996-09-13 | 2000-07-25 | Nec Corporation | Digital hearing aid and its hearing sense compensation processing method |
US6327366B1 (en) * | 1996-05-01 | 2001-12-04 | Phonak Ag | Method for the adjustment of a hearing device, apparatus to do it and a hearing device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE59510501D1 (en) | 1995-03-13 | 2003-01-23 | Phonak Ag Staefa | Method for adapting a hearing aid, device therefor and hearing aid |
-
2001
- 2001-04-10 EP EP01916843A patent/EP1290914B1/en not_active Expired - Lifetime
- 2001-04-10 CA CA002409838A patent/CA2409838A1/en not_active Abandoned
- 2001-04-10 DK DK01916843T patent/DK1290914T3/en active
- 2001-04-10 WO PCT/CH2001/000232 patent/WO2001049068A2/en active IP Right Grant
- 2001-04-10 US US09/829,700 patent/US7194100B2/en not_active Expired - Fee Related
- 2001-04-10 DE DE50102419T patent/DE50102419D1/en not_active Expired - Lifetime
- 2001-04-10 AU AU2001244029A patent/AU2001244029A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE34961E (en) * | 1988-05-10 | 1995-06-06 | The Minnesota Mining And Manufacturing Company | Method and apparatus for determining acoustic parameters of an auditory prosthesis using software model |
US5729658A (en) * | 1994-06-17 | 1998-03-17 | Massachusetts Eye And Ear Infirmary | Evaluating intelligibility of speech reproduction and transmission across multiple listening conditions |
US6327366B1 (en) * | 1996-05-01 | 2001-12-04 | Phonak Ag | Method for the adjustment of a hearing device, apparatus to do it and a hearing device |
US6094489A (en) * | 1996-09-13 | 2000-07-25 | Nec Corporation | Digital hearing aid and its hearing sense compensation processing method |
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US20040158431A1 (en) * | 2002-10-18 | 2004-08-12 | Dittberner Andrew B. | Medical hearing aid analysis system |
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US10389320B2 (en) | 2004-10-26 | 2019-08-20 | Dolby Laboratories Licensing Corporation | Methods and apparatus for adjusting a level of an audio signal |
US10361671B2 (en) | 2004-10-26 | 2019-07-23 | Dolby Laboratories Licensing Corporation | Methods and apparatus for adjusting a level of an audio signal |
US11296668B2 (en) | 2004-10-26 | 2022-04-05 | Dolby Laboratories Licensing Corporation | Methods and apparatus for adjusting a level of an audio signal |
US20070098193A1 (en) * | 2005-10-31 | 2007-05-03 | Phonak Ag | Method for producing an order and ordering apparatus |
US7890377B2 (en) * | 2005-10-31 | 2011-02-15 | Phonak Ag | Method for producing an order and ordering apparatus |
US8731215B2 (en) | 2006-04-04 | 2014-05-20 | Dolby Laboratories Licensing Corporation | Loudness modification of multichannel audio signals |
US8600074B2 (en) | 2006-04-04 | 2013-12-03 | Dolby Laboratories Licensing Corporation | Loudness modification of multichannel audio signals |
US8504181B2 (en) | 2006-04-04 | 2013-08-06 | Dolby Laboratories Licensing Corporation | Audio signal loudness measurement and modification in the MDCT domain |
US9584083B2 (en) | 2006-04-04 | 2017-02-28 | Dolby Laboratories Licensing Corporation | Loudness modification of multichannel audio signals |
US8019095B2 (en) | 2006-04-04 | 2011-09-13 | Dolby Laboratories Licensing Corporation | Loudness modification of multichannel audio signals |
US20100202632A1 (en) * | 2006-04-04 | 2010-08-12 | Dolby Laboratories Licensing Corporation | Loudness modification of multichannel audio signals |
US20090304190A1 (en) * | 2006-04-04 | 2009-12-10 | Dolby Laboratories Licensing Corporation | Audio Signal Loudness Measurement and Modification in the MDCT Domain |
US10284159B2 (en) | 2006-04-27 | 2019-05-07 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US9787269B2 (en) | 2006-04-27 | 2017-10-10 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US9698744B1 (en) | 2006-04-27 | 2017-07-04 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US11962279B2 (en) | 2006-04-27 | 2024-04-16 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US9742372B2 (en) | 2006-04-27 | 2017-08-22 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US9762196B2 (en) | 2006-04-27 | 2017-09-12 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US9768749B2 (en) | 2006-04-27 | 2017-09-19 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US9768750B2 (en) | 2006-04-27 | 2017-09-19 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US9774309B2 (en) | 2006-04-27 | 2017-09-26 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US9780751B2 (en) | 2006-04-27 | 2017-10-03 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US9787268B2 (en) | 2006-04-27 | 2017-10-10 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US8428270B2 (en) | 2006-04-27 | 2013-04-23 | Dolby Laboratories Licensing Corporation | Audio gain control using specific-loudness-based auditory event detection |
US11711060B2 (en) | 2006-04-27 | 2023-07-25 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US9866191B2 (en) | 2006-04-27 | 2018-01-09 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US11362631B2 (en) | 2006-04-27 | 2022-06-14 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US10833644B2 (en) | 2006-04-27 | 2020-11-10 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US9450551B2 (en) | 2006-04-27 | 2016-09-20 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US10523169B2 (en) | 2006-04-27 | 2019-12-31 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US9685924B2 (en) | 2006-04-27 | 2017-06-20 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US10103700B2 (en) | 2006-04-27 | 2018-10-16 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
US9136810B2 (en) | 2006-04-27 | 2015-09-15 | Dolby Laboratories Licensing Corporation | Audio gain control using specific-loudness-based auditory event detection |
US8144881B2 (en) | 2006-04-27 | 2012-03-27 | Dolby Laboratories Licensing Corporation | Audio gain control using specific-loudness-based auditory event detection |
US8849433B2 (en) | 2006-10-20 | 2014-09-30 | Dolby Laboratories Licensing Corporation | Audio dynamics processing using a reset |
US20110009987A1 (en) * | 2006-11-01 | 2011-01-13 | Dolby Laboratories Licensing Corporation | Hierarchical Control Path With Constraints for Audio Dynamics Processing |
US8521314B2 (en) | 2006-11-01 | 2013-08-27 | Dolby Laboratories Licensing Corporation | Hierarchical control path with constraints for audio dynamics processing |
US8396574B2 (en) | 2007-07-13 | 2013-03-12 | Dolby Laboratories Licensing Corporation | Audio processing using auditory scene analysis and spectral skewness |
US20100198378A1 (en) * | 2007-07-13 | 2010-08-05 | Dolby Laboratories Licensing Corporation | Audio Processing Using Auditory Scene Analysis and Spectral Skewness |
EP2023668B1 (en) | 2007-07-27 | 2019-11-20 | Sivantos Pte. Ltd. | Hearing aid with visualised psycho-acoustic magnitudes and corresponding method |
EP2070384B1 (en) | 2007-07-27 | 2015-07-08 | Siemens Medical Instruments Pte. Ltd. | Hearing device controlled by a perceptive model and corresponding method |
WO2009016012A1 (en) * | 2007-07-27 | 2009-02-05 | Siemens Medical Instruments Pte. Ltd. | Hearing device controlled by a perceptive model and corresponding method |
US8315398B2 (en) | 2007-12-21 | 2012-11-20 | Dts Llc | System for adjusting perceived loudness of audio signals |
US20090161883A1 (en) * | 2007-12-21 | 2009-06-25 | Srs Labs, Inc. | System for adjusting perceived loudness of audio signals |
US9264836B2 (en) | 2007-12-21 | 2016-02-16 | Dts Llc | System for adjusting perceived loudness of audio signals |
US10863291B2 (en) | 2008-08-12 | 2020-12-08 | Cochlear Limited | Customization of bone conduction hearing devices |
US10531208B2 (en) | 2008-08-12 | 2020-01-07 | Cochlear Limited | Customization of bone conduction hearing devices |
US10299040B2 (en) | 2009-08-11 | 2019-05-21 | Dts, Inc. | System for increasing perceived loudness of speakers |
US8538042B2 (en) | 2009-08-11 | 2013-09-17 | Dts Llc | System for increasing perceived loudness of speakers |
US9820044B2 (en) | 2009-08-11 | 2017-11-14 | Dts Llc | System for increasing perceived loudness of speakers |
US10483930B2 (en) * | 2010-07-27 | 2019-11-19 | Bitwave Pte Ltd. | Personalized adjustment of an audio device |
US20180097495A1 (en) * | 2010-07-27 | 2018-04-05 | Bitwave Pte Ltd | Personalized adjustment of an audio device |
US9479879B2 (en) | 2011-03-23 | 2016-10-25 | Cochlear Limited | Fitting of hearing devices |
US10412515B2 (en) | 2011-03-23 | 2019-09-10 | Cochlear Limited | Fitting of hearing devices |
US9312829B2 (en) | 2012-04-12 | 2016-04-12 | Dts Llc | System for adjusting loudness of audio signals in real time |
US9559656B2 (en) | 2012-04-12 | 2017-01-31 | Dts Llc | System for adjusting loudness of audio signals in real time |
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WO2001049068A2 (en) | 2001-07-05 |
EP1290914B1 (en) | 2004-05-26 |
DK1290914T3 (en) | 2004-09-27 |
DE50102419D1 (en) | 2004-07-01 |
EP1290914A2 (en) | 2003-03-12 |
CA2409838A1 (en) | 2002-11-19 |
AU2001244029A1 (en) | 2001-07-09 |
WO2001049068A3 (en) | 2002-09-12 |
US7194100B2 (en) | 2007-03-20 |
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